Doing away with all this types of trades which is the best to trade with and you wouldn't have to loss that much because the truth is having knowledge or not you can't do well when it comes to trade.so which is the best for a beginner to start with first.
Go through this post I think he has answered your questions
There are so many types. You have to study them and practice carefully and see the one you are more comfortable with. Some are high risk, High rewarding, others are low risk low rewarding
There is spot trading, Derivatives trading, arbitrage trading, options trading, long term investing etc
In all those kinds of trading, one can still lose money.
The difference between the expert and newbie is that they have been in the game for so long which they had many experience of trading despite everything they had gathered they are also losing too. So mate you have to DYOR so that you can know which one is favourable for you.